Process for the preparation of polyethylene

Details Process for the preparation of polyethylene Process for the preparation of polyethylene

1997-08-14

2000-02-08

Buttner, David

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Removing and recycling removed material from an ongoing...

526127, 526129, 526134, 5263485, 526901, 526905, C08F 234, C08F21016, C08F 478

Patent

active

060229330

ABSTRACT:
A process for preparing high density polyethylene in the gas phase comprising contacting a mixture comprising ethylene and one or more alpha-olefins with the supported reaction product of a bis-hydrocarbylsilyl chromate and a hydrocarbylaluminum compound or a hydrocarbyl boron compound in a fluidized bed reactor having a recycle gas line, under particularly defined polymerization conditions, including, but not limited to, the following provisos:

REFERENCES:
patent: 3790550 (1974-02-01), Miller
patent: 4003712 (1977-01-01), Miller
patent: 4588790 (1986-05-01), Jenkins, III et al.
patent: 5137994 (1992-08-01), Goode et al.
patent: 5625012 (1997-04-01), Hussein et al.

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